Graminece. 117 



Tribe IV. Zoysieae.* — Spikelets deciduous with their (articulate) pedicels 

 (except Zoysia), i-fld., bisexual (unisexual in Trachys); glumes 2-4; 

 fig. glume not hardening in fr. ; stam. 2 or 3 ; hilum punctiform. 

 Spikelets spicate. 

 Spikelets fascicled. 



Fascicles secund on a broad articulate rhachis 18. Trachys. 

 Fascicles all round a slender rhachis . . 19. TRAGUS. 

 Spikelets in racemed spikes, glumes 2 . .20. Zoysia. 

 Spikelets racemose. 



Glumes not awned, I and II with pectinate 



crests 21. LOPHOLEPIS. 



Glumes I and II long-awned, not crested . 22. Perotis. 



Tribe V. Phareae.f — Spikelets panicled, i-fld., unisexual, male and 

 fern, very dissimilar; glumes 3, III of fern, spikelets hardened or 

 inflated in fr. ; stam. 3 or 6; 1. usually long petioled, net-veined by 

 strong cross venules ; hilum linear . . .23. Leptaspis. 



B. Rhachis of infl., usually articulate and more or less fragile, but 

 sometimes tenacious. See also Stenotaphrum and Trachys. 



Tribe VI. IVXaydese-t — Infl. monoecious, spicate, male and fern, spikelets 

 on the same spike, when the fern, are at the base of the spike, or on 

 different spikes; spikelets large, never awned, male and fern, very 

 dissimilar, glumes III and IV membranous or hyaline, hilum 

 punctiform, embryo large. 

 Fruiting spikelet enclosed in a stony, polished, 



nut-like bract 24. CoiX. 



Fruiting spikelet with glume I, forming a crus- 

 taceous, polished, nut-like envelope to the 

 other glumes and grain 25. Polytoca. 



Tribe VII. Andropog , oneae. — Infl. spicate racemed or panicled; 

 spikelets usually small, solitary, or binate, a sessile and a pedicelled, 

 1-2-fld., sessile usually with a perfect fl., pedicelled male or neuter, 

 rarely bisexual, sometimes ternate, a sessile with a perfect fl. and 

 2 lateral pedicelled male or neuter; glumes I and II awned or not, 

 III and IV (sometimes II also) membranous or hyaline, IV always 

 smallest, awned or reduced to an awn with a twisted base; hilum 

 punctiform. 

 * Spikelets very many, all alike. 



Subtribe 1. DIMERIEyE. — Spikelets solitary, secund on a filiform or 

 flattened rhachis 26. DlMERIA. 



Subtribe 2. SACCHARE^E.— Spikelets all alike, 

 solitary or binate in open or contracted 

 panicles, or in spikes or racemes. 



* Tribe Zoysiece is a very heteromorphous group, removed by Dr. 

 Stapf (Fl. Capens.) to Poacece, and placed near Tribe Stipes. 



t Tribe Pharece is established by Dr. Stapf. (Fl. Capens.) and 

 removed from Panicacece to the neighbourhood of Bambusecz. Its 

 affinities are very obscure. By Bentham, and Hackel, and in Fl. B. Ind., 

 Leptaspis is placed in Oryzece. 



\ Name derived from the Maize, Zea Mays, L., which belongs to this 

 Tribe, though an anomalous member of it. 



